Year	% of GDP
2005	14.503323815854724
2006	14.72985704116547
2007	13.925787208240234
2008	13.847773301168179
2009	14.593085096340861
2010	14.663454416389026
2011	15.561548384985874
2012	16.692004661040645
2013	15.779985613145975
2014	16.718201719076394
2015	17.358483664505712
2016	16.864879662865746
2017	17.44313337166231
2018	17.33177979020397
2019	17.546121147347442
2020	16.7319714533172
2021	16.886852055340228
2022	17.39573865189462